Reticulated revetment.



J. MCGILLIVRAY.

RETICULATED REVETMENT.

APPucATmN FILED JUNE 15. 1915.

Patented Apr. 11, 1916.

JAMES MCGILLIVRAY, F SACRAMENTO, CALIFORNIA.

RETICULATED REVETMENT.

1,179,12fz..l

Specification of Letters Patent.

Patented Apr. 11, 1916.

Application led .T une 15, 1915. Serial No. 34,149.4

To all lwhom t may concern.'

Be it known that I, J AMES MCGILLIVRAY,

a citizen of the United States, residing at Sacramento, in the county of Sacramento and State of California, have inventedv certain new and useful Improvements in Reticulated Revetments, of which the following is a specification.

This invention has for its chief object the ultimate individual anchoring of the units in those revetments composed of concrete slabs tied together and preferably initially anchored to the surface of an embankment or levee by cables. This and other objects are attained as hereinafter disclosed.

The invention therefore consists in the structure, arrangement and combination of parts as herein set forth and claimed.

In the drawings which form a part of this specification Figure l represents a section of a levee whereon is seen in perspective a portion of a revetment embodying the present; invention. Figs. 2 and 3 representin perspective two modifications of the longitudinal members of the revetment; Figs. 4 and 5 show in perspective two forms of transverse members of the revetment; and Fig. 6 is a plan view typifying the union or connection of said longitudinal and transverse members.

The present invention resides in a reticulated revetment as contradistinguished from those of mattress form though it also contemplates a form wherein the interstices or pockets are closed at their bottoms thereby giving to the revetment the form of a mattress with ribs or flanges projecting upwardly along the joints. The drawings illustrate these variations.

The levee to which a revetment is shown applied in Fig. 1 is indicated by 10. Longitudinal members or units of the revetment are shown at l1, 12 and 13,-transverse members or units are represented at 14.-, anchoring cables at 15 and 16 and anchors for said cables are indicated by 17. The units made at any suitable place are assembled upon the surface to be protected. They are preferably provided with transverse holes 50 lat their ends through which rod or cable ties are passed as indicated at 18 and the ends of the ties joined together in any suitable way.

The revetment may be made up entirely 55 of members like 11 and 14 which would be tied together substantially as indicated in partially or completely by the builders of the revetment. Or the pockets may be providedv with, bottoms as by. partially filling them with a layer. of asphaltumor concrete poured in and evenedup as indicated at 19, Fig. 1; or a slab similar to 19 formed elsewhere may be laid in the' bottom of the pocket as indicated at 20, Fig. 1.' The vbottoms of said pockets mayalso be formedby molding or casting them integral with a longitudinal member as in the unit seen at 12, Figs. 1 and 2, or with a transverse memlber and longitudinal member as well-see Fig. 3. In such instances the transverse and longitudinal members are as vertical flanges at the edges of such a slab as 20.

In order to enhance the retentiveness of the pockets the members forming the longitudinal walls are preferably placed in vertical position. This arrangement of them necessitates making one or both ends of the transverse members oblique, or 'one end, preferably the lower end, may be oblique and the other end may be rounded or elliptical from upper to lower edge, Fig. 5. By thus rounding oneend greater flexibility or freedom is provided in fitting the transverse members to place. It is also preferable to round one endof the longitudinal members for the same reason, see 11, Fig. 1. That part of the revetment always under water, particularly the lower edge, may be composed of plain slabs like 20 which may be joined together and to the adjacent row of units by ties as 18.

When the revetment is laid anchoring cables 15 connected to anchors 17 may eX- tend down to the bottom of the revetment and have the units tied thereto at every joint most tie at that joint. Other cables anchored at the top of the levee may be attached only to the upper edge of the revetment; see cable 16. Such initial anchoring is suhicient for holding the revetment in place till anchored by sand and gravel in its pockets as stated.

The units of the revetment may be reinforced in any suitable way but preferably the reinforcing member is placed substantially as indicated by dotted lines 22 in Fig. 4:, for example. In such arrangement said member is located near the edges of the unit and is looped in completely around each tie hole which may be in any number desired and located as conditions may require.

The invention claimed isl. A reticulated revetment consisting of slabs of concrete set on edge longitudinally of an embankment and other such slabs set on edge transversely of the embankment and coperating with the 'longitudinally arranged ones to form pockets one end of each slab being curved outwardly from up- `per to lower edge for the purpose specified.

2. A reticulated revetment consisting of slabs of concrete set on edge longitudinally of an embankment and other such slabs set on edge transversely of the embankment and coperating with the longitudinally arranged yones to form pockets and a layer of concrete formed integrally with one or more of said slabs at each pocket to serve as a bottom therefor.

3. A revetment consisting of slabs of reinforced concrete set on edge and joined together end-to-end longitudinally of a levee other like slabs set on edge transversely of the levee and joined at their ends to the longitudinally arranged slabs at the joints 'therebetween whereby a succession of pockets is formed over the surface of the levee, concrete bottoms to said pockets formed integrally with one 0r more of said slabs, and anchored cables extending transversely of the levee and connected to the longitudinally arranged slabs.

4L. A revetment consisting of slabs of reinforced concrete set on edge and joined together end-to-end longitudinally of a levee f' other like slabs set on edge transversely of the levee and joined at their ends to the longitudinally arranged slabs, and cables anchored at the top of the levee and some attached to the upper edge of the revetment while others are extended to the bottom thereof and are attached at intervals thereto.

ln testimony whereof I affix my signature.

JAMES MCGILLIVRAY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

